

https://www.kyivpost.com/post/54339
For me in this case the preferred approach is the Occam’s razor - fsb found a way to take over. But following your credo, telegram is absolutely prohibited in the Ukrainian army - either they know or the risk is too high. Which is kind of the same thing.
Don’t forget it’s russian people currently fighting in Ukraine. Yes, they are directed by their government, but they seem to have no issues with fighting (and supporting - somebody has to work in all those munitions factories), whether it’s some national pride or just money.